| 释义 |
per-
prefix
Etymology: in sense 1, from Latin, throughout, thoroughly, completely, deviating from (also, used as verbal prefix with the meanings “through”, “throughout”, “thoroughly”, “detrimentally”, and to denote completion or perfection or intensification), from per through, by; in sense 2, from per through, by — more at for
1.
a. : throughout
< perdominant >
b.
(1) : containing the largest possible or a relatively large proportion of a (specified) chemical element especially as a result of exhaustive substitution for hydrogen or of exhaustive addition in an organic compound or group
< perchloroethylene >
< perhydronaphthalene C10H18 >
— compare peroxide 1, prot- 2a
(2) : containing an element in its highest or a high oxidation state
< perchloric acid >
(3) : peroxy- — not used systematically
< persulfate >
< perbenzoic acid >
2. : through
< perradius >
: by means of
< perlingual >
< perrectal > |